The Proto Shield is an open-source, low-cost, quickly produced face shield. It is designed to be functionally equivalent to the Prusa face shield. It’s just 100x faster to make. The visor is compatible with 3D printed Prusa parts.

Materials for the Proto Shield cost less than $1, and it can be produced by almost any laser cutter in less than 1 minute. It can be stored and shipped flat, is comfortable enough to be worn all day, and can be disassembled for sterilization and re-use.

One person can make hundreds of Proto Shields in a day from almost anywhere in the world. Here’s how: